AM6 CSI

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Camera

Testing MIPI-CSI2 cameras

Before running any of the pipelines below make sure you have camera(s) connected. AM6 family of processors uses gstreamer as multimedia framework. Please refer to https://gstreamer.freedesktop.org/

Camera Probe

Run the following command to see if you have the camera(s) detected

# v4l2-ctl --list-devices

This should produce the following output

j721e-csi2rx (platform:30102000.ticsi2rx):
        /dev/video0
        /dev/video1
        /dev/video2
        /dev/video3
        /dev/media0

The camera interface is /dev/video0

Testing Camera Preview on Display

• VGA 640x480@30fps:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/640x480@1/30]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=640,height=480,framerate=30/1,format=YUY2 ! waylandsink sync=false

• NTSC 480p 720x480@30fps:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/720x480@1/30]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=720,height=480,framerate=30/1,format=YUY2 ! waylandsink sync=false

• HD 720p 1280x720@30fps:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/1280x720@1/30]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=1280,height=720,framerate=30/1,format=YUY2 ! waylandsink sync=false

• Full HD 1280p 1920x1080@15fps:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/1920x1080@1/15]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=1920,height=1080,framerate=15/1,format=YUY2 ! waylandsink sync=false

• QSXGA 1944p 2592x1944@30fps:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/2592x1944@1/30]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=2592,height=1944,framerate=30/1,format=YUY2 ! waylandsink sync=false

Testing Camera JPEG Snapshot

To capture JPEG snapshot run one of the pipelines below depending upon the required picture resolution.

• VGA 640x480:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/640x480@1/{{{5}}}]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=640,height=480 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_640x480.jpg

• NTSC 480p 720x480:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/720x480@1/{{{5}}}]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=720,height=480 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_720x480.jpg

• HD 720p 1280x720:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/1280x720@1/{{{5}}}]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=1280,height=720 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_1280x720.jpg

• Full HD 1280p 1920x1080:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/1920x1080@1/{{{5}}}]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=1920,height=1080 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_1920x1080.jpg

• QSXGA 1944p 2592x1944:

# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:/2592x1944@1/{{{5}}}]'
# XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=2592,height=1944 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_2592x1944.jpg